import 'package:flutter_test/flutter_test.dart';
import 'package:halkyon_ui/halkyon_ui.dart';
import 'package:material_ui/material_ui.dart';

import '../support/test_app.dart';

void main() {
  /// Shows [child] on a screen, in German.
  Future<void> show(WidgetTester tester, Widget child) => tester.pumpWidget(
    testApp(locale: const Locale('de'), Scaffold(body: child)),
  );

  testWidgets("a required field says so in the app's language", (
    tester,
  ) async {
    await show(
      tester,
      Builder(
        builder: (context) => TextField(
          decoration: requiredDecoration(
            context,
            const InputDecoration(labelText: 'Name'),
            missing: true,
          ),
        ),
      ),
    );

    expect(find.text('Pflichtfeld'), findsOneWidget);
  });

  testWidgets('a count stepper names its buttons', (tester) async {
    await show(
      tester,
      CountStepper(value: '5', onFewer: () {}, onMore: () {}, onTyped: (_) {}),
    );

    expect(find.byTooltip('Verringern'), findsOneWidget);
    expect(find.byTooltip('Erhöhen'), findsOneWidget);
    expect(find.byTooltip('Zahl eingeben'), findsOneWidget);
  });

  testWidgets('a reorderable row is dragged by its grip', (tester) async {
    await show(
      tester,
      CustomScrollView(
        slivers: [
          SliverReorderableList(
            itemCount: 1,
            onReorderItem: (_, _) {},
            itemBuilder: (context, index) => ListTile(
              key: const ValueKey('row'),
              title: const Text('Row'),
              trailing: ReorderGrip(index: index),
            ),
          ),
        ],
      ),
    );

    expect(find.byTooltip('Zum Umsortieren ziehen'), findsOneWidget);
  });

  testWidgets('More info names itself, and copies a value with a tap', (
    tester,
  ) async {
    await show(
      tester,
      Builder(
        builder: (context) => TextButton(
          onPressed: () => showMoreInfoSheet(context, [
            (
              title: null,
              rows: [(label: 'ID', value: '0199a', copyable: true)],
            ),
          ]),
          child: const Text('Open'),
        ),
      ),
    );
    await tester.tap(find.text('Open'));
    await tester.pumpAndSettle();

    expect(find.text('Weitere Informationen'), findsOneWidget);
    await tester.tap(find.byTooltip('Kopieren'));
    await tester.pump();
    expect(find.text('In die Zwischenablage kopiert'), findsOneWidget);
  });

  testWidgets('the palette picker names its colour', (tester) async {
    await show(
      tester,
      PaletteColorPicker(selected: PaletteColor.copper, onChanged: (_) {}),
    );

    expect(find.text('Kupfer'), findsOneWidget);
    expect(find.bySemanticsLabel('Farbe: Kupfer'), findsOneWidget);
  });
}